by Pirani, N., Ricker, B. A., Kraak, M. J.
Published in The Canadian geographer (01.06.2020)

by Ojemann, Linda M, Wilensky, Alan J, Temkin, Nancy R, Chmelir, Teresa, Ricker, Barbara A, Wallace, Jan
Published in Epilepsy research (01.11.1992)

by Ricker, B. A., Rickles, P. R., Fagg, G. A., Haklay, M. E.
Published in Cartography and geographic information science (03.07.2020)

by Horita, M, Jabs, A D, Ricker, B A, Loren, A, Yokoyama, M M
Published in Kurume medical journal (1980)